22112223123 has 16 divisors (see below), whose sum is σ = 31038129920. Its totient is φ = 13964070816.

The previous prime is 22112223071. The next prime is 22112223157. The reversal of 22112223123 is 32132221122.

It is not a de Polignac number, because 22112223123 - 2¹³ = 22112214931 is a prime.

It is a super-2 number, since 2×22112223123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22112223123.

It is not an unprimeable number, because it can be changed into a prime (22112221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724161 + ... + 754077.

It is an arithmetic number, because the mean of its divisors is an integer number (1939883120).

Almost surely, 2^22112223123 is an apocalyptic number.

22112223123 is a deficient number, since it is larger than the sum of its proper divisors (8925906797).

22112223123 is a wasteful number, since it uses less digits than its factorization.

22112223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42906.

The product of its digits is 576, while the sum is 21.

Adding to 22112223123 its reverse (32132221122), we get a palindrome (54244444245).

The spelling of 22112223123 in words is "twenty-two billion, one hundred twelve million, two hundred twenty-three thousand, one hundred twenty-three".